Fixes

loon/mqtt/handlers/player_joined.py

@@ -0,0 +1,12 @@
+from loon.web.users.service import sync_minecraft_users
+
+
+async def player_joined_handler(client, userdata, msg, data):
+    if msg.topic != "loon/playerlist/joined":
+        return
+
+    player = data.get("player")
+    if not player:
+        return
+
+    await sync_minecraft_users([{"uuid": player["uuid"], "username": player["username"]}])